Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Product Profile
- Full IUPAC Name: 4,4'-Oxybis[3-(trifluoromethyl)aniline]
- Aliases: 3,3'-Bis(trifluoromethyl)-4,4'-oxydianiline, 6F-ODA
- CAS Number: 344-48-9
- EINECS: N/A
- Molecular Formula: C14H8F6N2O
- Molecular Weight: 334.21
- Chemical Classification: Fluorinated aromatic diamine monomer, high-performance polyimide raw material
- Core Advantages
Fluorine-containing ether-linked aromatic diamine with two trifluoromethyl substituents. The electron-withdrawing -CF3 groups endow polymers with low dielectric constant, low water absorption, high light transmittance and excellent heat resistance. Key monomer for transparent polyimide films, flexible circuit substrates, optical device coatings and high-temperature resistant composite materials; widely used in electronics, aerospace and optoelectronic industries.
2. Physical & Chemical Properties
2.1 Physical Index
- Appearance: White to pale light yellow crystalline powder
- Odor: Slight aromatic amine odor
- Solubility: Soluble in DMF, DMAc, DMSO, NMP, hot ethanol; slightly soluble in methanol; insoluble in water and aliphatic alkanes
- Melting Point: 108–112 °C
- Hygroscopy: Non-hygroscopic under dry sealed storage
- Optical Feature: Low UV absorption after polymerization, good light transmission
2.2 Chemical Properties
- Dual Amino Functional Groups: Two -NH2 groups undergo polycondensation reaction with dianhydrides to form polyimide chains
- Trifluoromethyl Substituent: Strong electron-withdrawing group improves thermal oxidation stability and reduces dielectric loss of polymer
- Ether Linkage: Flexible C-O-C bond increases molecular chain flexibility, improving film ductility
- Acid & Alkali Stability: Stable under neutral and weak alkaline conditions; amino groups form ammonium salts with dilute acid
- Thermal Stability: No obvious decomposition below 280 °C; high char yield at high temperature
- Photostability: Better UV resistance than non-fluorinated oxydianiline monomers
- Compatibility: Fully miscible with polar amide solvents and dianhydride monomers; incompatible with strong oxidants and concentrated strong acids
3. Main Application Fields
3.1 Transparent Polyimide Monomer (Core Usage)
Special diamine raw material for colorless transparent polyimide (CPI) films, used in flexible display substrates, foldable screen cover layers and optical windows.
3.2 High-End Electronic Polyimide Material
Raw material for low-dielectric polyimide insulating layers of high-frequency flexible circuit boards, reducing signal transmission loss.
3.3 Aerospace Heat-Resistant Composite Resin
Synthesis precursor of lightweight high-temperature resistant polyimide composite for aircraft and satellite components.
3.4 Organic Optoelectronic Intermediates
Building block for high-stability organic light-emitting device hole transport materials.
4. Quality Specification Table
| Test Item | Standard Index |
| CAS No. | 344-48-9 |
| Molecular Formula | C14H8F6N2O |
| Molecular Weight | 334.21 |
| Appearance | White to pale yellow crystalline powder |
| Melting Range | 108–112 °C |
| HPLC Chemical Purity | Electronic Grade ≥99.5%; Synthesis Grade ≥98.0% |
| Single Maximum Unknown Impurity | ≤0.10% |
| Total Related Substances | ≤0.50% |
| Moisture Content (KF) | ≤0.10% |
| Heavy Metals (Pb) | ≤5 ppm |
| Residue on Ignition | ≤0.05% |
| Bulk Package | 25kg light-proof aluminum foil lined nitrogen-sealed fiber drum |
| Sample Package | 10g / 100g / 1kg sealed light-proof aluminum foil bag |
| Storage Requirements | Hermetic, light-proof cool dry warehouse ≤25℃; isolate humid air, strong light and oxidizing substances |
| Transportation Rule | Fluorinated aromatic amine monomer; light-proof sealed packaging mandatory during transit |
| Shelf Life | 36 months under intact nitrogen-sealed light-proof packaging |
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